The Hublot Big Bang Unico Green SAXEM

Hublot introduces a groundbreaking iteration of its revolutionary material, SAXEM. With a close resemblance to sapphire, SAXEM boasts exceptional resistance while delivering an unparalleled luminosity.

“Some simple ideas have an instant effect. Others require a great deal of ingenuity and technical skill. This has been the case for SAXEM. It took almost two years of R&D to successfully create the uniform, homogenous colour of this chemical compound. While as perfect and resistant as sapphire, the finish differs. This is something collectors appreciate as the new green SAXEM captures the essence of Hublot: first, unique and different.”

Ricardo Guadalupe

Cousins, though they share a family resemblance, often have unique differences. The same can be said for sapphire and SAXEM, both stemming from the Hublot lineage. The Nyon Manufacture played a vital role in bringing these materials into the 21st century, establishing them as hallmark elements. While sapphire consists of aluminum oxide with added metallic oxides for color, SAXEM derives its color from rare earth elements. Sapphire has a trigonal structure, while SAXEM boasts a cubic form.

Although these details may seem technical, Hublot’s focus on research and development has been evident since the inauguration of the Nyon Manufacture in 2009, and continues to be a driving force today. The new Big Bang Unico Green SAXEM stands as a testament to this commitment.

Creating an unprecedented shade of SAXEM has been a challenging journey for Hublot. Since its introduction in 2019 with the Big Bang MP-11, the Manufacture has developed two shades: yellow and emerald. While SAXEM is as resilient as sapphire, it possesses a distinct, brighter shine. Its structure exhibits fewer strains, resulting in a more uniform and seamless appearance. Hublot looks towards the future, exploring new technical and aesthetic possibilities with SAXEM.

The Green SAXEM of the new Big Bang UNICO showcases several of these innovations. The 42 mm case exudes solidity and robustness, packing the power of SAXEM into a dense, compact diameter. The material absorbs light, creating an illusion of emission. Green SAXEM gracefully permeates the smallest contours of the case and bezel, adorned with six iconic titanium H-shaped screws. At 12 and 6 o’clock, Hublot’s patented One Click system for interchangeable straps can be found.

For the movement, Hublot has chosen the UNICO 2 calibre, a new-generation flyback chronograph known as the HUB1280. This marks a departure from the previous Big Bang SAXEM, which was powered by the micro-rotor HUB6035. The movement remains self-winding, now enhanced with a high-performance tungsten oscillating weight visible through the back of the Green SAXEM case.

Combining advanced technology with a robust design, the HUB1280 calibre showcases the iconic column wheel at 6 o’clock, serving as UNICO’s technical and aesthetic signature. Another distinctive feature is the date disc, fully visible around the movement, with the aperture set in the center of the 60-minute counter at 3 o’clock.

The movement is elegantly finished in black PVD, matching the crown and two push-pieces. Hublot has successfully replicated the exact shade of Green SAXEM for the luminescent material on the index and hands. This exclusive achievement will be limited to the production of only 100 Big Bang Green SAXEM watches.

The Hublot Big Bang Unico Green SAXEM


  • Reference: 441.JG.4990.RT
  • Case Size: 42mm
  • Case Back: Open
  • Dial Color: Black, Green
  • Dial Finish: Skeletonized
  • Luminescence: Yes
  • Strap Material: Rubber
  • Strap Color: Green
  • Buckle Type: Folding Clasp
  • Movement: Automatic Caliber: MHUB1280
  • Power Reserve: 72 hours
  • Water Resistance: 50m/5 bar

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